The mitochondria use oxygen to burn fat and glucose (sugar) and convert it into ATP (energy) for the muscles. If your mitochondria are dormant, which they can be if your not working out, they stop burning fat and sugar and your become insulin resistant. That’s not a good thing.
In order to stay lean keep lifting weights regularly and doing cardio regularly to keep those mitochondria growing and burning fat and sugar, keeping you lean.
Nobody talks about the Mitochondria, they truly are the powerhouse of the cell. Check out suggested supplements for mitochondria on under our catagories menu to the right on the page.